The answer is Alexander Borodin. Yes, ANOTHER Russian composer I like. It turns out that Johnny Mathis sings Stranger in Paradise, quite the famous song based on a fragment of Borodin's Polovtsian Dances. And the link to Pavlov? (no pun intended) According to Wikipedia, Borodin earned a doctorate in medicine at the "Medico–Surgical Academy, the later home to Ivan Pavlov".
For you see, Borodin was a prominent chemist, uncommonly enough, and also, won a posthumous Tony Award in 1954 for Stranger in Paradise.
Try the Johnny Mathis song, and then get the Polovtsian Dances. It'll be fun to compare the experience of the full piece to that of the popularized version. Make sure to get the full set of dances. You will find that you've probably heard some of them before somewhere. If you still are up for it, go for the full opera (Polovtsian Dances is part of a larger composition), Prince Igor, which had to be completed by Rimsky-Korsakov and Glazunov, as Borodin died before completing it.
